[PATCH 2/2] nvme: use return value from blk_execute_rq()

[Christoph Hellwig]

On Sat, Apr 17, 2021 at 02:17:35AM +0900, Keith Busch wrote:
> On Fri, Apr 16, 2021 at 10:12:11AM -0700, Yuanyuan Zhong wrote:
> > >         if (poll)
> > >                 nvme_execute_rq_polled(req->q, NULL, req, at_head);
> > You may need to audit other completion handlers for blk_execute_rq_nowait().
> 
> Why? Those callers already provide their own callback that directly get
> the error.
> 
> > How to get error ret from polled rq?
> 
> Please see nvme_end_sync_rq() for that driver's polled handler callback.
> It already has the error.

But it never looks at it..